Tire-valve delflator.



iuvirnn sraras PATENT onirica..-

GIFFORD E. BLAYLOGBL OF. BALTIMORE, MARYLAND.

, TIRE-VALVE DEFLA'LOR.

Be it lmovvn that I, Girronn E. BnALo'cn, a citizen of the United States, residing at VBaltimore city, State of Maryland, have i1i"l vented certain new and useful Improvements in-Tire-Valve Deflators; of which the following 1s a 'speciication This invention relates to devices applicable to tire valves for the purpose ot' holdlng'the valve open. so that the inner tube of, the tire may be completely deflated without removal of the valve inside from the valvestem,

as isthe usual practice. l

.and

The invention has for its objectto'provide a simple and efficient device of the kind stated, and also one Which'enables the tire tube to be iniated -without removal of the device therefrom.

A further object of the invention is toA rovide a tire valve appliance of the rind stated by which the valve inside may be screwed into or screwed out of the valve stem.

@ther objects and advantages 0f the invention will vbe pointed out in the detailed description appearing hereinafter, it being understood that, while the preferred embodiment has been disclosed, various changes and modifications may be made without a departure from the spirit and scope of Ythe invention. l

t' ln order that the inventionmay be better nnderstcOd, reference is had to the accompanying drawing forming a part of this specication.

- In the drawing:

Figure 1 is an elevation of the device in place and ready for use, with parts ot the valve stem to which it is applied broken away; f y

Fig, 2 is a vertical section of the device,

Figs. 3 and 4l are side elevations ot' the de:

vice takenfrom oppositefsides. f

Referring specifically to the drawing, 10),.

denotes a fragment of the valve stem of the inner tube ot shown) of a pneumatic tire. The valve inside is shown at 11, it being provided with the usual lug 12 at its outer end to facilitate the operatlon of screvvinol thesame into or out of the stem. Thesle parts are of standard design which is weil known, and hence a further description thereof is' not necessary.

mi member i supper ne; the device e the present Specification of Letters Patent. Patented Ee@ 24, 1918 1918. Serial No. 242,565.

application for patent comprises two opposite side legs 18 having a transverse connecting portion 14 at one end, with their oppo- A site free ends inturned, as shown at 15, said \inturned ends having apertures 16. The supporting member is a single piece of thin spring metal, and the legs 13 have a normal tendency to spread. It will therefore be evi dent that when the legs are sprung inward tooverlaptheparts 15 and to bring the ap? ertures 16 into registration, the device may be slipped'over the valve stem 10, and when released, the tendency of the legs to spread, causes the apertured portion of the parts 15 'to securely grip the valve stem on the outside, Whereb the device is securely held in place on sai stem. The device is made of a thin strip vof spring metal, so that 'the edgesof the apertures 16 enter the thread grooves of the valve stem, whereby slipping of the device on said stem is etlectually prevented.

The (interconnecting portion 14 of the supporting device carries a swiveled Wrench member for unscrewing the valve inside 11 to remove the same from the stem 10, and lalso' for replacing the same. .This Wrench member comprises a tubular stem 17 having ahead 18 at its outer end which denes a shoulder 19y seating on the outer surface of the part 14. The stein 17 passes loosely" through an aperture in the part 14, and beneath the latter it has a collar 20 Whichfcooperates with the shoulder 19 to hold the Stem against longitudinal movement, it however being t'ree to turn. The under side of the part 14 has a reinforcement 21 against Which'the collar 20 bears, and the collar is provided with a gasket 22 adapted to seat on the outer end ofthe valve stem 10 as shown in Fig. 2.` The end of the stem 17 which is to engage the valve inside 11 has a kerf ll to seat the lug 12, so that when the, stem is turned, the valve inside can be screwed in or unscrewed. Thd central longitudinal bore of the stem "T7 is threaded to receive a valve-unseating screw stem 23 of such length that it can be projected from the inner end of the stem 17 to'mgage the usual stem 24 extending from the valve proper, and hold lthe valve 'unseated. VThe outer end of the screw stem 23 has a head 25 for facilitating its manipulation.

in use, the .supporting member heroinbetore described is slipped over the valve stem whiclrvvas applied to his tube.

22 seating on the outer end of the Valve stem 10 as shown in Fig. 2. .if it now desired to open the valve and hold it open to let all the lug 12, so that avhen the stem i7 is turned the valve inside.will be screwed in or unscrevved according to the direction the stem 17 is turned.

The device is designed more particularly for use in tire repair establishments. When repairing inner tubes, it is necessary to eompletely deflate the same, this being usually done by removing the valve inside ll from the stem l0. Hence, when the repair job is finished and the tube is to be tested by in Hating' the same, the, valve inside must be replaced. As some repairs necessitate several tests, much time is spent in removing and replacing the valve insidef7 and furthermore, some styles of valve insides are destroyed upon removal from the valve stem. These difficulties are entirely 'overcome by the use of the device hereinheiore described. The valve can be held open until the tube is completely deflated, and when the tube is to be inflated, it is necessary only to back the stem 23 to release the valve. lt is also not necessary to remove the device from the valve stem l0 when the tube is to be inflated. lt will be noted that the stem 23 has a eentral longitudinal air passageway '26, so that the air hose can be applied to the head 25 to let air into the tube.

One of the legs 13 has an inscription shown at 27 in Fig. e to identify the tire tube to which the particular device may be applied.. The customer receives a check or other token having an inscription correspending to the inscription on the device By this means the jobs are easilyidentilied azii the 'customer is assured of having bis tube returned to him. @ne of thelegs 13 may also be provided With lips 28 to hold a cheek or tag 29 on which the customers name appears, the date, the cost of the job, or any other desired 'it will be noted that the stem is not o sageway 26, the same opening through the sides of the larger portion of the stem 'at the inner end thereof. The bore 2T in'ivhieh the larger portion of the stem 23 Works is reduced at the inner portion of the member 17, as shown at 28 to seatthe. reduced portion of said stein, with sui'iicient space in said portion of the bore to allow the air 'to pass through the same from the larger portion of the bore.

l' claim:

l. A tire valve appliance, comprising a supporting member, a siviveled Wrench member carried by said supporting member,4

and a longitudinally movable-valve-unseat ing member carried by the Wrench member.

2. A tire valve appliance, comprising a supporting member, a swiveled Wrench member carried by the supporting member, and a longitudinally movable valve-unseating member carried by the Wrench member and having a longitudinal air passageway.

3. A tire valve appliance, comprising a supporting member, a sWi-veled Wrench member carried by the supporting member and having a longitudinal screw-threaded opening, and a valve-unseating sere-W stem in said opening.

ln testimony Whereor", l affix my signature in the presence of tivo witnesses. i

E. Wan-ron Banu/meros; HoWAnn AEl). ADAMS. 

